I am pretty sure this is related to newspaper subscriptions. I keep getting calls from 201-244-86XX, and when I've looked those numbers up, other people have said that it is related to them recently canceling a newspaper subscription. Me, I have let my paper subscription expire, and now I keep getting these calls... I don't answer, though, if I don't know the number. They never leave messages, either.
Received a call from these people. I did not recognize the number so I did not answer. I have an unlisted private number and a land line. I am also on the do not call registry for my state and the FTC.